Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c72606ab3ad6aae…

MALICIOUS

PDF

72.8 KB Created: 2021-03-15 15:44:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ad2dcc43db2f56f3a81f85a707c0c5d6 SHA-1: 1855f50464a78b4a36bdcec86191c2b2956a0bb8 SHA-256: 4c72606ab3ad6aae7b6e40fb1b2e7c3be991020ca203faba0a72317b412cc151
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gimoguvi.ru/wix?keyword=minn+kota+power+drive+v1+manual PDF link annotation
    • https://cdn.sqhk.co/falugojafat/bhahbtj/instrument_tuner_app_violin.pdfIn PDF document text
    • http://nicepics.xyz/61368626974ilj24.pdfIn PDF document text
    • http://golosa-spasibo.ru/lugimarututioffan.pdfIn PDF document text
    • https://cdn.sqhk.co/bofozuto/icXibMU/dune_buggy_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/jb2vDji/41412764730.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487399/normal_601db88433a92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480595/normal_6012c3807cb8d.pdfIn PDF document text
    • https://cdn.sqhk.co/poxedomeke/igAMico/potuposovuwopofunusasebox.pdfIn PDF document text
    • http://tryse.xyz/vukani3jvta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c7c973d-1b09-4d39-83f6-d086ac7d3460/nozezifoworujuwida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2755dc1f-a939-4c99-80c1-4163aebe0e97/dakasarud.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/26125532528.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/sanyo_55_inch_smart_tv_price.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/air_fryer_cooking_times_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2861add0-b9c9-4cbc-8f4f-f486733ea9a2/voyager_legend_uc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f91ee10-4ba5-4a52-a8ee-3574460736e2/millennial_hospitality_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/429f2d37-99e6-4f14-9880-af30ff82628b/79395252001.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB8 5200 bytes
SHA-256: e06a38296a82a6bd47d43c39bc90788416bd026a146b326872684594f39e3f19
font_01_sfnt_off0000f07a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF07A 10996 bytes
SHA-256: 35353a421dc701ee8632e23d4f55880c3be9bd590ff0c77ef04e19da342897cd

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